U.S. Republican Senator Susan Collins called President Donald Trump's executive order against Obamacare "very confusing" on Monday, saying whatever actions the Trump administration takes, legislation will still be needed to replace the health insurance law. Collins, a moderate Republican from Maine, was speaking at a press conference to introduce her own legislation to replace former Democratic President Barack Obama's healthcare law. Trump, who campaigned on a promise to dismantle Obamacare, signed his first executive order Friday within hours of taking office.